Staged in linux-next for v4.8-rc2
** Also affects: linux (Ubuntu Yakkety)
Importance: Undecided
Assignee: Taco Screen team (taco-screen-team)
Status: New
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Yakkety)
Status: New => Fix Released
** Changed in: linux (Ubuntu Yakkety)
Assignee: Taco Screen team (taco-screen-team) => (unassigned)
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https://bugs.launchpad.net/bugs/1612431
Title:
CAPI: Update default setting for the psl_fir_cntl register
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
New
Status in linux source package in Yakkety:
Fix Released
Bug description:
== Comment: #0 - Frederic Barrat - 2016-08-10 09:28:02 ==
---Problem Description---
In the cxl driver, the psl_fir_cntl register is set to the recommended value
for a lab environment. This should be converted to use the recommended setting
for a production environment.
Contact Information = [email protected]
---uname output---
Linux freak 4.4.0-34-generic #53-Ubuntu SMP Wed Jul 27 16:04:07 UTC 2016
ppc64le ppc64le ppc64le GNU/Linux
---Additional Hardware Info---
CAPI fpga card
Machine Type = any
---Steps to Reproduce---
setting of the psl_fir_cntl can be accessed through
# cat /sys/kernel/debug/cxl/card0/fir_cntl
== Comment: #2 - Frederic Barrat - 2016-08-10 10:13:22 ==
Fix is in powerpc maintainer's tree and will find its way in 4.8-rc2;
cxl: Set psl_fir_cntl to production environment value
https://git.kernel.org/powerpc/c/c6d2ee09c2fffd3efdd31be2b2
However, though simple, the upstream patch won't apply cleanly to the
Xenial tree due to other patches merged in 4.8. So I'm attaching a
version of the patch which applies on Xenial
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